Interpretation #7039

Published August 02, 2012

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Original Request

Code Version
2007
Code
BUILDING
Code Description
Building
Chapter
19
Section
1917
Topic
Compressive Strength

Question

Is it the intent of Chapter 1917,1917.1.1,.1.2 and .1.3 references to minimum compressive strength tested in compliance with ASTM C495 and C796, if the ASTM standard is not followed or the tester deviates from the recognized standard,does this invalidate the test results?

Answer Published 08/02/2012 at 4:28 PM

To assure the minimum compressive strength has been
acheived, it is imparative to follow the standards as
referenced in the code. If the testing lab deviates from
the proscribed test procedure the test is invalid.

Commentary

To assure the minimum compressive strength has been acheived, it is imperative to follow the standards as referenced in the code. However, the Building Official may approve the test results under Section 104.11 if he/she finds the test results comply with the requirements of this section and sub section 104.11.1 and 104.11.2.